- Size: 33 • Waterproof boots for children made with natural rubber, durable, flexible, and water-resistant. • Handcrafted vulcanization process that reduces weak points in the rubber. • 100% BPA-free and non-toxic material, ensuring children's health. • Non-slip design with deep-groove sole for strong traction and water evacuation. • Resistant to over 100 hours of activity without seams bursting or leaks. • Easy to clean, ideal for keeping children dry and clean during the muddy and puddle season. • Cotton lining that absorbs sweat, keeping feet dry and comfortable all day. • Soft lining made of a cotton and polyester blend for added comfort and moisture absorption.